Browse server of ckfinde option is not working showing error

hi,
i m using ckeditor with ckfinder for java in ADF.facing the issue that readonly is not working in chrome.

I used the ckeditor in follwoing way.

1.used ckeditor tag in JSF follwoed by the javascript

as shown.

<af:panelLabelAndMessage label="#{com_ofss_fc_ui_view_messageTemplateUI.LBL_MESSAGE_DATA}"
                                       binding="#{MessageTemplateUIMaintenance.plam4}"
                                       id="plam2" showRequired="true">
                <ckfinder:setupCKEditor basePath="ckfinder/" editor="ckeditor"/>
                <ckeditor:editor basePath="ckeditor/" editor="ckeditor" value="${bindings.templateBuffer.inputValue}"></ckeditor:editor>
                <trh:script id="s1" generatesContent="true">
                    createUpdateEditor('ckeditor', false);
               </trh:script>
              </af:panelLabelAndMessage>

and method createUpdateEditor as shown below:

function createUpdateEditor(editor, taskflow){
     try{
       if (CKEDITOR.instances[editor]) {
          CKEDITOR.remove(CKEDITOR.instances[editor]);
       }
       var ip = window.location.hostname+':'+window.location.port;
       var basepath = null;
       if(taskflow == false){
         basepath = "com.ofss.fc.ui.view";
       }else{
         basepath = "/workflow/com.ofss.fc.workflow.ui.common.approval/";
       }
       var editorInsatnce = CKEDITOR.replace(editor,
        {"filebrowserImageBrowseUrl":"http:\/\/"+ip+"\/"+basepath+"\/ckfinder\/ckfinder.html?type=Images",
        "filebrowserBrowseUrl":"http:\/\/"+ip+"\/"+basepath+"\/ckfinder\/ckfinder.html",
        "filebrowserFlashBrowseUrl":"http:\/\/"+ip+"\/"+basepath+"\/ckfinder\/ckfinder.html?type=Flash",
        "filebrowserUploadUrl":"\/"+basepath+"\/ckfinder\/core\/connector\/java\/connector.java?command=QuickUpload&amp;type=Files",
        "filebrowserImageUploadUrl":"\/"+basepath+"\/ckfinder\/core\/connector\/java\/connector.java?command=QuickUpload&amp;type=Images",
        "filebrowserFlashUploadUrl":"\/"+basepath+"\/ckfinder\/core\/connector\/java\/connector.java?command=QuickUpload&amp;type=Flash"});
       CKFinder.setupCKEditor(editorInsatnce, 'ckfinder/');
     } catch(e){
       alert("instance is not ready");
     }
     
      CKEDITOR.appendTo(editor,
     {"filebrowserImageBrowseUrl":"http:\/\/"+ip+"\/"+basepath+"\/ckfinder\/ckfinder.html?type=Images",
     "filebrowserBrowseUrl":"http:\/\/"+ip+"\/"+basepath+"\/ckfinder\/ckfinder.html",
     "filebrowserFlashBrowseUrl":"http:\/\/"+ip+"\/"+basepath+"\/ckfinder\/ckfinder.html?type=Flash",
     "filebrowserUploadUrl":"\/"+basepath+"\/ckfinder\/core\/connector\/java\/connector.java?command=QuickUpload&amp;type=Files",
     "filebrowserImageUploadUrl":"\/"+basepath+"\/ckfinder\/core\/connector\/java\/connector.java?command=QuickUpload&amp;type=Images",
     "filebrowserFlashUploadUrl":"\/"+basepath+"\/ckfinder\/core\/connector\/java\/connector.java?command=QuickUpload&amp;type=Flash"});  
  }

Scenarios:

First time page loads ckeditor load in read mode with content editable false.

Once data is read and value in puted then ckeitor button seems disable but editing area allowing to edit the data in chrome , but working peoperly in mozilla and IE.

code for making readonly in java ADF.

            script.append("if(typeof (CKEDITOR.instances.ckeditor) != 'undefined')" +
                          "{CKEDITOR.instances.ckeditor.setReadOnly();" +
                          "CKEDITOR.instances.ckeditor.contentEditable=false;" +
            "document.getElementsByName(\"ckeditor\")[0].readOnly=true;}");

             script.append( "CKEDITOR.instances.ckeditor.setReadOnly();");

Please help on this issue.